When we change our circumstances change.
Most people would rather attempt to change the world than change themselves. In fact a large percentage of people love to play the "blame game". If one convinces them self that it's not "their fault" something went wrong then there is no (lesson) for them to learn.
"It was out of my hands" or "It was fate/destiny."
In order to avoid making the same mistakes a person has to acknowledge (they) made a mistake in the first place.
A lot of folks operate on "auto pilot" in life. They don't want to think or make the effort to be aware of potential consequences of decisions.